Necessary Knowledge: Piagetian Perspectives on Constructivism

Originally published in 1993, this monograph addresses a central problem in Piaget’s work, which is the temporal construction of necessary knowledge. The main argument is that both normative and empirical issues are relevant to a minimally adequate account of the development of modal understanding. This central argument embodies three main claims. One claim is philosophical. Although the concepts of knowledge and necessity are problematic, there is sufficient agreement about their core elem...